Cultivator staff



CULTIVATOR STAFF Filed Aug. 17, 1939 2 sneets-riea 1 W. W. SWEARINGERCULTIVATOR STAFF 2 Sheets-Sheet 2 Filed Aug. 1 7,

'ently mounting the tor or sweep may be Patented Aug. 19, 1941 f UNITEDSTATES PATENT orrlca g 2,253,449 1 v I wa fifififiififie, Ark.

3 Claims.

This invention relates to a cultivator stafl and particularly to meansfor adjustably and resili-, sweep,gshovel or plow of a cultivator or theequivalent, so that the cultivadisposed at' the desired angle and willnot break when encountering undue obstructions.

The more specific objects and advantages will become apparent fromaconsideration of the description following taken in connection withaccompanying drawings illustrating an operative embodiment.

In said drawings- Figure 1 is a view in side improvements;

Figure 2 is a view in elevation of the improvements taken at a rightangle to Figure 1;

Figure 3 is a substantially central vertical sectional view through myimprovements;

Figure 4 is a horizontal section taken on the line 4-4 of Figure 3;

Figure 5 is a vertical section taken on the line 5-4 0! Figure 3;

Figure 6 is a horizontal section taken on the line 6-8 of Figure 3, and

Figure '7 is a detail section taken on the line 1-1 of Figure 3.

Referring specifically to the drawings wherein elevation showing my likereference characters designate like or sim ilar parts, 10 designates aconventional support, beam or the like such as depends from a cultivatOror the equivalent, whether horse drawn or power driven. At the lowerend, support or beam III has a rearwardly extending arm ll. Arm llextends into a saddle l2 which consists primarily of parallel plates l3integrally connected by a bridge at the rear lower portion l4.

Said saddle I2 is shank 15, to the front curved surface l6 of which, asweep, plow, shovel, cultivator or the equivalent is adapted to beremovably bolted or otherwise fastened. This shank or foot essentiallyhas spaced apart plates I! which are parallel with each other and whichare integrally connected by webs asat l8, i9, 20 and 2|, respectively. Abolt 22 is removably passed through the plates l3 and arm ll, thuspivotally connecting the parts through which it passes, for adjustmentand yielding.

The foot or shank I5 is adapted to be adjustably connected to the saddleI2 at different angles, according to the position or angle desired forthe shovel, sweep or the like attached to the foot or shank [5. Tothis'end, a bolt 23 is passed removably through enlarged openings 24 and25,

disposediwithin a foot or 3 respectively, in the web 21 and bridge 14.Bolt 23 has a head 26 resting on the web 2| and beneath the bridge 14, anut 21 engages screw threads 28 on the bolt. An expansive coil spring 28surrounds the bolt 23 and at opposite ends engages the :bridge 14 thusurging the shank into and maintaining it in the adjusted positionpermitted by the positionof the nut 21.. v

A bolt 30 passes removably through openings 3| and 3| in the plates l3and I1, respectively. I The openings 3 l are enlarged with respect tothe bolt as shown, to permit the relative adjustments between the footor shank l5 and the saddle i2. Said bolt It also passes through openingsin the lower end of links 32 which extend upwardly and are pivotallyconnected to a removable bolt ll passed selectively through openings 34in a' lever or yoke 35, preferably U-shapedin plan, as shown, with itsterminals pivotally connected as by means of a bolt 36 to the support orbeam ll.

-The series of openings 34 enable the bolt 33 to be placed in diflerentpositions, according to the adjustment desired for the links 32.

The lower edge of the yoke or lever 35 has a plurality of notchesgageable by a cross member 38 of a bolt 39, extending'upwardly throughthe yoke and through a U-shaped saddle or projection 40 welded orotherwise connected to the support or beam III.

The upper surface 0! said projection 40 is serrated as at 4| and isengaged by the under serrated surface 42 of a washer 43, the serrationsenabling the latter to be placed and held in dilferent adjustedpositions along the projection., A coil spring 44 surrounds the bolt 38and rests on the washer 43 and its upper end is engaged by a nut 45,engaging screw threads 46 on the bolt 39.

Both of the nuts 21 and 45, are preferably provided with cups orhousings as at 41 and 48, respectively, so that they may contain. greaseor lubricant which will flow onto the screw threads and adjacent parts,preventing rusting thereof and facilitating adjustments at all times.

and the plow, sweep or shovel encounters an undue obstruction, the footor shank IE will move backwardly, swinging on the pivot 22 and swingingwith it as a unit, the saddle l2, also moving and web 2|,respectively,-,

31 therein selectively enthey mu within the spirit and scope oi. theinvention.

I claim as my invention:

1. A device 01' the class described comprising a support, a shank,, asaddle, means pivoting said shank and saddle together and to thesupport, means to adjust the shank and saddle relatively to each other,expansive means to resist swinging of the shank and saddle, said meanspassing through slots in the shank and saddle, one of the slots beingenlarged with respect to said means to permit the relative movement oithe shank and saddle.

- 2. A device 01' the class described comprising a support, a shank, asaddle, means pivoting said shank and saddle together and to thesupport,

means to adjust the shank and saddle relatively to each other, expansivemeans to resist swingmg of the shank and saddle, said means passingthrough slots in the shank and saddle, one of the slots being enlargedwith respect to said means to permit the relative movement of the shankand saddle, said second mentioned means comprising a bolt, a web on theshank and a bridge on the saddle through which the bolt passes, a headand a nut on said bolt respectively engaging said web or bridge, and anexpansive spring between the web and bridge engaging them andsurrounding the bolt.

3. A device of the class described comprising a support, ashovel-carrying shank pivoted on said support, a link pivoted to theshank, a lever pivoted t0 the support and to the link, a spring, meansco-acting with the spring and lever to tension the spring throughoperation or the lever, said lever being of U-shape with its terminalsreceiving the support therebetween, the last mentioned means comprisinga bolt extending through said lever and having a cross member, saidlever having a notch in its undersurface engaged by the cross member, aprojection above which said bolt extends, the upper surface of saidprojection being serrated, a washer having a serrated surface engagingthe first mentioned serrations, said spring being seated on the washer,and a nut on the bolt engaging the opposite end 01' the spring to thewasher.

WALTER W. SWEARINGER.

